as in watch
the state of being constantly attentive and responsive to signs of opportunity, activity, or danger
the paparazzi were on red alert for sightings of the hot new Hollywood couple
Synonyms & Similar Words
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Example Sentences
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Recent Examples of red alert
This isn’t the first time Martinelli’s attempts to leave Panama have been thwarted — previously, Nicaragua canceled his travel plans over fears of an Interpol red alert notice, which asks police agencies around the world to arrest someone on sight.
—
Antonio Maria Delgado, Miami Herald, 4 Apr. 2025
City authorities issued two red alerts for road ice and blizzard dangers, while several districts canceled classes for Monday, the Global Times reported.
—Jessie Yeung, CNN, 2 Mar. 2025
But with the Cannes Film Market just around the corner, industry are suddenly on red alert and the impact is already being felt.
—Andreas Wiseman, Deadline, 5 May 2025
The app uses an algorithm that warns patients using yellow or red alerts.
—IEEE Spectrum, 6 Mar. 2021
See All Example Sentences for red alert
Antonio Maria Delgado, Miami Herald, 4 Apr. 2025
City authorities issued two red alerts for road ice and blizzard dangers, while several districts canceled classes for Monday, the Global Times reported.
—Jessie Yeung, CNN, 2 Mar. 2025
But with the Cannes Film Market just around the corner, industry are suddenly on red alert and the impact is already being felt.
—Andreas Wiseman, Deadline, 5 May 2025
The app uses an algorithm that warns patients using yellow or red alerts.
—IEEE Spectrum, 6 Mar. 2021
See All Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
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Limited runs and special editions are, ironically, pretty common in the watch world, but add an extra layer of allure to any timepiece.—
Rachel Cormack,
Robb Report,
2 Aug. 2025
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The watch is for Southern Craven, West Carteret, East Carteret, Inland Onslow and Coastal Onslow as well as Duplin and Jones counties.—
NC Weather Bot,
Charlotte Observer,
1 Aug. 2025
Noun
-
News alerts in your inbox: Don't miss the important news of the day.—
Lorenzino Estrada,
AZCentral.com,
30 July 2025
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The alert is for Northern Craven as well as Beaufort and Pamlico counties.—
NC Weather Bot,
Charlotte Observer,
29 July 2025
Noun
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Only continuous efforts and vigilance can safeguard American democracy and create a more equal and just society.—
Time,
Time,
16 July 2025
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Exposure management is about ongoing vigilance and dynamic measurement.—
Tony Bradley,
Forbes.com,
15 July 2025
Cite this Entry
“Red alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20alert. Accessed 6 Aug. 2025.
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